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William S. Carlsen has written 2 work(s)
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cover image for 9780873552134
Product Description: Whether you re a stream studies novice or a veteran aquatic monitor, Watershed Dynamics gives you abundant practical resources to extend your students investigations into local water quality and land-use issues. This two-part set is ideal for teaching biological and ecological concepts and research techniques...read more
By William S. Carlsen (editor)

Hardcover:

9780873552134 | Student ed edition (Natl Council of Teachers of, April 1, 2004), cover price $55.01 | About this edition: Whether you re a stream studies novice or a veteran aquatic monitor, Watershed Dynamics gives you abundant practical resources to extend your students investigations into local water quality and land-use issues.

cover image for 9780873551960
Product Description: Assessing Toxic Risk is a comprehensive guide to student research in toxicology. It includes an overview of basic principles of toxicology and how they are used to assess chemical risks. It provides simple but authentic research protocols to engage students in the process of testing chemical toxicity by conducting bioassays using lettuce seeds, duckweed, and Daphnia...read more (view table of contents, read Amazon.com's description)

Paperback:

9780873551960 | Natl Science Teachers Assn, February 1, 2002, cover price $24.95 | About this edition: Assessing Toxic Risk is a comprehensive guide to student research in toxicology.

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